Barium Disilicate

Barium disilicate is a compound with the chemical formula BaSi2O5. It is a white crystalline solid that is often used as a ceramic material due to its high refractive index and low coefficient of thermal expansion.

In terms of crystal structure, barium disilicate belongs to the orthorhombic system, with space group Pnma. Its lattice parameters are a = 6.785 Å, b = 8.462 Å, and c = 4.832 Å.

Barium disilicate has a melting point of around 1400°C and can be synthesized by heating a mixture of barium carbonate and silicon dioxide in the presence of a fluxing agent such as sodium carbonate. It is insoluble in water but can be dissolved in hydrochloric acid.

One important property of barium disilicate is its high dielectric constant, which makes it useful for applications in electronic devices such as capacitors. It also has potential as a material for optical waveguides due to its high refractive index.

Overall, barium disilicate is an interesting material with a variety of potential applications in fields such as electronics and optics.